Supply question

trulylovinlife

My LO went to stay with her grandma for a few hours today so I pumped in place of the feeding. When I did my right side produced almost 2 more ounces then the left side. Is this normal ? Is there any way to increase the output on the left ? TIA

trulylovinlife

Thank you(: . I was kinda nervous because my supply is still evening out and prior to this week I was able to get 5-6 oz from each side in one session.